Architect Resources - Roof Access

Surespan SRHP Thermally broken roof hatch. 50mm insulation offering a U-value of 0.43 W/m²K. Manufactured from aluminium. Curb liner and L01 internal Cablock as standard. Can be powder coated internally and externally.

Roof Hatch Thermally Broken

Available Sizes with Structural Opening

PRODUCT REFERENCESTRUCTURAL OPENING (MM)WEIGHT
 SRHP50/60.60 600 x 600 42 kg
 SRHP50/75.75 750 x 750 54 kg
 SRHP50/75.90 750 x 900 58 kg
 SRHP50/90.90 900 x 900 60 kg
 SRHP50/10.10 1000 x 1000 66 kg
 SRHP50/12.12 1200 x 1200 75 kg
 SRHP50/15.75 1500 x 750 75 kg
 SRHP50/25.75 2500 x 750 85 kg
SRHTB/FR Fire Rated Roof Hatch WITH THERMAL BREAK SRHP-Locking System L01

L01 Internal Lock

SRHP-L04 Locking Option

L04 External Lock

Deadock with internal and external key

L07 Deadlock

Downloads

Ladder Access

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SRHP/TB-ZIP-ES-JAK

Surespan SRHP Roof Hatch with ZIP Retractable Ladder, extended skirt liner and a jakdor ceiling access panel.

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SRHP/TB-SLCRH

SRHP Roof Hatch with Fixed vertical ladder, safety cage and retractable handhold.

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SRHP/TB-SHPS

SRHP Roof Hatch with SHP Companionway Ladder available in a variety of applications.

Design Considerations

Fixed Vertical Ladder

  • Roof hatches should be easily operated while retaining safe points of contact. For a rule of thumb we highly recommend 3 points of contact onto the ladder at all times.
  • The size of the roof hatch should be at least 900 x 750 to offer enough headroom for the user.
  • Ladder should be positioned opposite the hinge side so the lid is behind the user (size permitting) or to the side.
  • Consideration must be given for external hand holds and handrails to offer further support for exiting and entering the roof void.
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ZIP Retractable ladder

  • The ZIP ladder is to be mounted at the lowest point of the aperture
  • A further 50mm must be allowed if it is to be used with a Jakdor access panel
  • ZIP 4 – 7 ladders are available up to a height of 3.39m
  • A bespoke ZIP 8 is available for heights above 2.5m and is povided with an integral wooden trap door. The ZIP8 allows top down operation.
  • The minimum dimension for a ZIP ladder is 640mm without a ceiling panel or 740mm with a ceiling panel
  • Wall mouned rungs if required have a minimum spacing of 220mm
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SHIPS Companionway ladder

  • Roof hatches with a SHIPS ladder should provide a minimum headroom clearance of 1200 according to BS 5395.
  • Single line hand rail must be included either side of the ladder
  • The ladders are designed for use in the 65° to 75° range.
  • Heights over 3 metres require an intermediate platform
  • Consideration must be given for external hand holds and handrails to offer further support for exiting and entering the roof void.
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